Free and Open Source Software

posted by Rianne Schestowitz on Jun 22, 2025

• Watermark add watermarks to images - LinuxLinks

  Watermark is an easy-to-use application that allows users to add custom watermarks to their images. This application is used to combat identity theft by securing official documents with a watermark.

  The application will add the watermark across the entire image, including the date and time. If someone uses this document for anything other than insurance, you can state that this document was sent solely for your insurance purposes

  It supports various image formats and provides expert options to customize the watermark text and appearance.

  This is free and open source software.

• Demolito is a UCI chess engine - LinuxLinks

  Demolito is a UCI chess engine.

  As such, it is a command line program, which is not designed to be used directly, but instead through an UCI capable UI, such as CuteChess or Banksia, or c-chess-cli.

  This is free and open source software.

• Qtel - EchoLink client - LinuxLinks

  Qtel, the Qt EchoLink client, is a graphical application used to access the EchoLink network.

  EchoLink allows licensed Amateur Radio stations to communicate with one another over the Internet, using streaming-audio technology. The program allows worldwide connections to be made between stations, or from computer to station, greatly enhancing Amateur Radio’s communications capabilities.

  This is free and open source software.

• Encoding Explorer transforms characters into binary - LinuxLinks

  Encoding Explorer is a tool for learning character encoding.

  This is free and open source software.

• RBDOOM-3-BFG is a modernization effort of DOOM-3-BFG - LinuxLinks

  Experience the ultimate modernization of DOOM-3-BFG with RBDOOM-3-BFG! This source port brings cutting-edge technology to the classic, featuring PSX-style and 8/16-bit retro rendering modes, immersive CRT filters, enhanced global illumination PBR lighting, and realistic blood effects. Designed for both retro enthusiasts and casual gamers, RBDOOM-3-BFG delivers a complete overhaul while staying true to the original gameplay.

  This version reintroduces the iconic classic flashlight as an option, letting you experience the suspense and atmosphere of DOOM 3 just as you remember it. Now requiring Vulkan and supporting Wayland, it’s the definitive way to relive DOOM 3 with a fresh, modern twist.

  This is free and open source software.

• Chronograph - sync lyrics of your loved songs - LinuxLinks

  Chronograph is an app for syncing song lyrics by timestamps.

  Chronograph supports .ogg, .flac, .mp3, .m4a, .opus and .wav media formats. Also it supports .aac format, but without metadata reading, editing and automatic publishing to the LRClib. You can import lyrics from Clipboard, File or from LRClib and export your lyrics to these destinations

  This is free and open source software.